Metal wound Gasket Disassembly methods are:
1. Uniform Discharge method
Symmetrical, uniform, rotate back Sonfalan bolt 1/4~1 ring, then formally remove bolts.
2. Derusting method
The thread is soaked with kerosene or rust remover, removes rust, increases lubrication and facilitates disassembly of parts.
3. Swelling Relaxation method
Insert flange by means of wedge iron and other tools.
4. Ejector Bar Method
For rust die, adhesive gasket, first remove the bolt, then close the valve, with the valve stem top open the bonnet.
5. Tapping method
Tapping the valve body with tools such as copper rods and hammer to remove the parts and gaskets after loosening.
6. Wet method
Soak the gasket with solvent, kerosene and so on, soften or peel the sealing surface and disassemble it.
7. Punching Ring method
Aberdeen is a four-ring fixed, ring groove gap Small and no wrench, when the four open ring after the demolition of the candle is very difficult. The hole can be removed from the outside of the valve, and the four open rings are removed with a flat-type flush.
8. Shovel Scraping method
It is especially suitable for gasket and rubber ASBESTOS gasket to eliminate gasket and its residue by using blade to close the sealing surface.
SEAL GASKET Disassembly Sequence: Remove the preload on the gasket, open the static sealing device, remove the gasket, remove the gasket residue.